---
title: "FIX 5.0 SP2 EP299: <AttachmentGrp> component block – FIX Dictionary – Onix Solutions"
description: "<meta name=\"description\" content=\"&lt;AttachmentGrp&gt; component block &ndash; FIX 5.0 SP2 EP299, FIX protocol version FIX 5.0 SP2 EP299\" /> <meta name=\"keywords\" content=\"component block, AttachmentGrp, FIX 5.0 SP2 EP299, FIX Protocol, FIX dictionary\" />"
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# <AttachmentGrp> component block

## FIX 5.0 SP2 EP299

### Description

 The AttachmentGrp component provides the ability to attach other media type documents to a FIX message for transmission. The media type can be any of the media types (previously referred to as MIME types) that are listed by IANA (www.iana.org) [RFC2046].

 The AttachmentGrp is intended to be used to attach documents in other formats, such as PDF, TIFF, and Microsoft Word, for example to a FIX message.

 Note when the AttachmentGrp is used within a business message, such as the [TradeCaptureReport <AE>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/msgType_AE_6569.html), the attachment should supplement the data already contained in the business message It is not intended to replace the content of the business message. The standard fields within the business message should be populated, even if they duplicate data expressed within the attachment(s).

### Structure

| Tag | Field Name | Req'd | Comments |  |
| --- | --- | --- | --- | --- |
| 2104 | [NoAttachments](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2104.html) | N |  |  |
| → | 2105 | [AttachmentName](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2105.html) | N | Required if [NoAttachments <2104>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2104.html) > 0. |
| → | 2106 | [AttachmentMediaType](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2106.html) | N | Required if [EncodedAttachment <2112>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2112.html) is present. |
| → | 2107 | [AttachmentClassification](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2107.html) | N |  |
| → | 2108 | [AttachmentExternalURL](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2108.html) | N | Either [AttachmentExternalURL <2108>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2108.html) or [EncodedAttachment <2112>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2112.html) must be specified if [NoAttachments <2104>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2104.html) > 0. |
| → | 2109 | [AttachmentEncodingType](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2109.html) | N | Required if [EncodedAttachment <2112>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2112.html) is present. |
| → | 2110 | [UnencodedAttachmentLen](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2110.html) | N |  |
| → | 2111 | [EncodedAttachmentLen](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2111.html) | N | Must be set if [EncodedAttachment <2112>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2112.html) is specified and must immediately precede it. |
| → | 2112 | [EncodedAttachment](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2112.html) | N | Either [AttachmentExternalURL <2108>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2108.html) or [EncodedAttachment <2112>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2112.html) must be specified if [NoAttachments <2104>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/tagNum_2104.html) > 0. |
| → | [Component Block - <AttachmentKeywordGrp>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/compBlock_AttachmentKeywordGrp.html) | N |  |  |

### Used In

- [TradeCaptureReport <AE>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/msgType_AE_6569.html)
- [Email <C>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/msgType_C_67.html)
- [XMLnonFIX <n>](https://www.onixs.biz/fix-dictionary/5.0.sp2.ep299/msgType_n_110.html)

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